Water-conductor pipe or the like.



APPLICATION FILED MAY 14, 1906.

ZTL/Q0 I v vwzntw UNITED y STATES AUSTIN JEROME ROSS, OF CAMBRIDGE, ILLINOIS.

WATER-CONDUCTOR PIP-E OR THE LIKE.

Specication of Letters Patent.

Patented Feb. 26, 1907.

Application led May 14, 1906. Serial Nox 316,850.

- To LH whom, t may concern.'

Beit known that I, AUSTIN JEROME Ross, a citizen of the United States, residing at Oambridge, county of henry, State or Illinois, have invented certain new and useiul lmprovements in Water-Conductor Pipes or the Like; and I do hereby declare the lollowing to be a lull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

'lhis invention relates to certain improvements in sheet-inetal pipes, and more particularly relates to improvements in downspouts or rain-water conductors for buildings and the like employed to carry oft' the water lrom rools.

An object of the invention is to provide an improved sheet-metal pipe particularly adapted for use in locations exposed to low temperatures as a down-spout or rain-water conductor and wherein the seam uniting the edges of the sheet forming the pipe-section is arranged at the exterior of the pipe and is so iormed as to permit expansion of the pipe in case of freezing and wherein improved and simple arrangements are employed for locking the edges of the sheet at one end of the pipe-section.

A lurther object of the invention is to provide certain improvements and formations whereby an elncient and economical rainwater conductor or down-spout will be produced.

rlhe invention consists in certain novel arrangements and formations of parts, as more fully and particularly pointed out and explamed hereinalter.

Relerring to the accompanying drawings, Figure 1 is an elevation of a'pipe-sectlon formed in accordance with my invention. Fig. 2 is a perspective thereof, showing the large or locked end thereof. Fig. 3 is a cross-section showing the formation of the lapped edges of the sheet forming the pipe.l

Fig. 4 is a longitudinal section through said lapped edges. Fig. 5 is a plan view of the pipe-section flattened out, showing the lock' ing or anchoring tongues straightened out as before, being bent out and down to lock the edges of the sheet together at the upper end of the pipe-section.

Each conductor or pipe is made of any desirable length, and the edges of the sheet forming the same are prelerably anchored or locked together at one end only of the l edge conductor, preferably the large end, while the opposite end is expansible so that it can'l be contracted in being iorced or telescoped into the large end of 'a similarly-formed conductor. In other words, each down-spout or rain-water conductor when applied' to a building is made up of a number of similar telescoped sections or sections united by slipjoints. v

The conductor or pipe is formed from a blank or sheet of any suitable sheet metal, the longitudinal edges ol which in the completed pipe-section are united by a seam arranged longitudinally of the conductor or pipe.

One longitudinal edge 1 of the sheet is straight or lat. The opposite longitudinal edge of the sheet is, by suitable appliances doubled twice on the outer face of the sheetthat is, the edge portion of the sheet is iirst bent back and tightly down on the outer surface of the sheet, forming the double 2- and the free edge portion 3 ot' the sheet is then bent forwardly and down on the double 2, thereby forming the socket or double fold opening outwardly at the edge of the sheet. rIhere are hence three plies or thicknesses at the edge 0i' the sheet provided with said socket, the socket being arranged on the outer face of the sheet. Before the socket is formed the sheet is notched at 4, so that the socket is not formed throughout the entire length of the sheet, but terminates a distance above the lower edge of the sheet equal to the distance the small or lower end of a conductor-section is capable of entering the large or anchored end of the next section. The socket, however, extends completely to the upper or opposite end of the sheet, and consequently to the upper end edge of the conductor-section when formed.

When forming the blank, the same is longitudinally cut or slitted downwardly a sui table distance from and through its top edge to form the similar anchoring or locking tongues 5 6. Each tongue is formed by a pair of parallel slits. The tongue 5 is formed in the rlat-edge portion l and extends vertically or longitudinally to the top edge of the blank. 'lhe tongue 6 is similarly formed and arranged in the outer ply of the socket at the other edge of the blank. The blank having been formed as thus described and as shown in Fig. 5 is by suitable means bent into cylindrical form, and the straight or liat l laps over the opposite edge and is lOO IOS

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forced into the outside socket formed by the plies 2 and 3. The flat edge l is forced into said socket until the tongue 5 within the socket registers with the tongue 6 in the outer ply of the socket at the large end of the conductor or pipe-section. The two parallel superimposed tongues are then together bent outwardly and tightly down on the outer surface of the outer ply 3 of the socket, thereby anchoring or locking the ends of the sheet at the upper edge thereof and at the large or upper end of the section. After the flat end l has been forced completely into the socket the vsocket is tightly compressed to form a comparatively tight seam or joint, yet one which will permit expansion of the pipe below the anchor or lock in the event of water freezing therein. As the seam of the completed pipe-section does not extend completely to the opposite or lower end of the section by reason of the notch 4., said end of the section is reduced in size, as there are only two piles of material where the flat edges of the sheet overlap, whereby the small end of one section can slip into the large end of the next section until the lower end 7 of the seam engages the upper end of the seam of the adjacent section, whereby the end 7 of the exterior seam forms a stop.

Advantages are attained by arranging the peculiar seam described on the exterior of the pipe, so that the fiat end of the sheet laps outside of the opposite edge of the sheet, whereby the interior of the conductor is free of obstructions and has a smooth surface for the flow of water, and whereby a much tighter seam can be formed than if arranged within the conductor.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A pipe section comprising a metal sheet having a longitudinal flat edge, and the opposite longitudinal edge doubled back on the outer face of the sheet and then doubled forwardly to form a longitudinal socket opening along the edge of the sheet and at the exterior of the pipe-section, said flat edge tting tightly within said socket, whereby the lapped portions are at the exterior of the pipe-section, said flat edge being held within said socket throughout its length by friction only, except at the large end of the section, said flat edge and socket at the large 5 5 end of the pipe being anchored by having por- 1 tions thereof bent together and exposed at the exterior of the pipe-section.

2. A pipe-section comprising a sheet-metal blank having a longitudinal flat edge and a lon itudinal edge formed with an exterior dou le fold snugly receiving the flat edge at the exterior of the section, said sheet being notched at one end of said edge provided with the double fold, whereby the double fold terminates a distance from the end edge of the reduced end of the pipe-section, said flat and double-fold edges having longitudinal superimposed locking portionsaent down on the exterior of the double fold at the end of the pipe-section opposite said reduced end.

3. A shee-t-metal pipe comprising a sheetmetal blank having a longitudinal flat edge and the opposite edge formed with an exterior longitudinal double fold forming the socket snugly receiving said fiat edge, said flat edge and the outer ply of said fold, at one end of the section, formed with registering tongues bent together outwardly and down at the exterior of the section to form an anchor.

4. A sheet-metal pipe formed of a blank, the edges of which are united by a long-itudinal seam, said edges slitted to form longitudinal superimposed tongues, said tongues bent out and down to form an anchor.

5. A sheet-metal pipe formed of a blank having a longitudinal flat edge, the opposite edge formed with a double fold receiving the liat edge, said flat edge and a ply of said double fold cut to form parallel superimposed tongues, said tongues being together bent out and down to form an anchor.

6. A sheet-metal pipe-section formed of a blank having a longitudinal flat edge, the opposite edge formed with an exterior longitudinal double fold receiving said flat edge at the exterior of the section, said fold terminating a distance from one end of the section to form the reduced end and an exterior stop, the llat and folded edges being anchored together at the large or opposite end of the section by superimposed tongues bent out at the exterior of the pipe-section.

In testimony whereof I affix my signature in presence of two witnesses.

AUSTIN JEROME ROSS.

Vitnesses H. S. MCMULLEN, JAMES PoLLooK.

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